"use of undeclared identifier 'BIO_s_file_internal'"
During BSDCan 2018 the intention to update OpenSSL in base to 1.1.x branch was documented.
Intention is to update OpenSSL in 12-STABLE to 1.1.1 when that is released.
Poudriere log: https://keg.brnrd.eu/data/111amd64-default-openssl111/2018-08-14_10h01m04s/logs/errors/mongo-cxx-driver-1.1.2_8.log
If I am right:
+#if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
+# define BIO_s_file_internal BIO_s_file